Filtering apparatus.



No. 880,426. PATENTED FEB. 25, 1908.

H. P. TAYLOR. PILTBRING APPARATUS.

APPLIOATION FILED 00T.B, 1906. RENEWED JUNE 19. 1907. v

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0 44 26" I I I I? Q I Z; 'zicaaed A 10 1 a ,afjzverz Zor I I dZ/M/ 1 7y2] & yZor w 21 j w PATENTED FEB. 25, 1908.

H. P. TAYLOR.

PILTERING APPARATUS. v APPLICATION FILED 0OT.8, 1906. RENEWED JUNE 19. 1907.

2 SHEETS-SHEET 2.

v i za'ezzfar Jar)" 22h Z07 HARRY P. TAYLOR, OF SALT LAKE CITY, UTAH.

. FIIiTERING APPARATUS.

Specification of Letters Patent.

Patented Feb. 25,1908.

Application filed October 8. 1906, Serial No. 338.003. Renewed June 19. 1907. Serial No; 379.797.

I T all whom it may concern:

Be it known that I, IIARRY P. TAYLOR, a citizen of the United States, residing at Salt Lake City, in the county of Salt Lake and State of Utah, have invented new and useful Improvements in Filtering Apparatus, of which the following is a specification.

This invention relates to filtering apparatus, more particularly to that class employed in the treatment of ores by the cyanid process,. and aims to provide in a manner as hereinafter set forth a new and improved form of filtering member which shall be simple in its construction and arrangement, strong, durable, efficient in use,

obtain a maximum filtering area with minimum space, readily set up and removed when occasion so requires, and inexpensive to manufacture. a

The invention further aims to provide in a manner as hereinafter set forth means for causing the circulation of the material to be operated upon, thereb facilitating the filtering step; and furt ermore, to provide means in a manner as hereinafter set forth to constitute a spreader and amalgam'ator for the material being treated so that the material is thoroughly aired and to enable the catching of any coarse gold, if a gold ore is being treated.

The invention further aims to provide a filtering apparatus in a manner as hereinafter set forth to enable the employing of a c anidsolution as a means for circulating the material to be treated so as to facilitate the filtering operation.

With the foregoing and other objects-in view the invention consists of the novel construction, combination andarrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In describing the invention in detail, reference is had to the accompanying drawings wherein like reference characters denote corresponding parts throughout the several views, and in which Figure 1 is a top lan view of a filtering apparatus in accor ance with this inven tion; Fig. 2 is a vertical sectional view thereof; Fig. 3 is a sectional elevation of the filtering member; Figs. 4 and 5 are details of the filtering member; Fig. 6 is a modification of one of the elements of the filtering member; and Fig. 7 is a like view of another modification.

Referring to the drawings by reference characters, 8 denotes a receptacle or tank in which the filtering operation is carried on and the said receptacle or tank 8 is provided with an inverted cone-shaped bottom- '9 having an opening 10 constituting an outlet for the material. To the bottom 9 of the rece tacle or'tank 8 is secured an L-shaped disc arge pipe 11 which communicates at- .one end with the opening 10, and at its other" end is closed by a removable plug 12.

Arranged centrally of the receptacle or tank 8 and in alinement with the o ening 10 and pipe 11 is a vertically extending stand pipe 13 which is of such length as to project above the top edge of the receptacle or tank- 8. The stand pipe 13 terminates at its lower end at a point removed from the ope 10 or bottom 9 of the receptacle or tan 8, thereby forming a passage 14'. The stand pipe 13 is secured within the tank or rece tacle 8 by a s ider 15, although other suitab e means than t e spider can be employed. The stand ipe 13 at its upper end terminates in a cone-s aped member 16 which constitutes a spreader and amalgamator, and the said cone-shaped member 16 is of much less diameter than the. tank orrece tacle 8 so as to form a passage 17 to permit of the material discharging offv from said cone-shaped member and into the tank or receptacle 8. The material to be treated is drawn from the bottom portion of thetank or receptacle 8 and is carried up through the pipe 13 and discharged out of the ipe 13 over and upon the cone-shaped mem or 16 andthen falls through the ceptacle 8. his action causes a circulation and a thorough agitation of the material. The material is caused to circulate in a manner as stated throu h the medium of the solution emplo ed, and ill-this connection it will be stated t at the solution is drawn off from the upper end of the tank or receptacle 8 and is then forced into the tank or receptacleB at the bottom and up and through the stand 13, such action will cause the solution to or receptacle and force the material up.

assage 17 into the tank or reshapedmember 16,

through the stand pipe 13 and over the cone ack into the tank or reeeptacle 8.

tion from the, tank or receptacle 8 so as to obtain the circulation of the material, a suction pi e 18 is rovidedwhich is arranged below t e cone-s aped member 16 and above the filte members to be hereinafter'referred to. he suction pipe extends through the wall of the tank or receptacle and communicates with a branch 19, the latteropening into a.suction device orpump 20. The discharge ipe for the Suction device or pump 20 is Indicated by the reference character 21, the latter terminates in a vertically ex-. tending branch pi e 22. .The branch pipe 22. extends through the discharge pipe 11 and up into, the o ening 10 and is positioned s'ubstantiall in a inement with the center of the stand1p1pe13. I

From the foregoing arrangement of parts it is evident that when the suction device or pump 20 'is operated the solution will be drawn from the upper portion of the tank and forcedintothe tank at the bottom thereof, andthereby' obtain the circulation of the material in a manner as. stated. The coneshaped member 16, as above stated, constitutes a spreader'and amalgamator, and the function thereof is to cause a thorough airing of the material, oxygen being necessary to cyanid extraction. Furthermore, the spreader and amalgamator acts as a means for catching coarse gold if a gold ore is being treated. I

Arranged within the receptacle or tank 8,

and suitably secured to the bottom. thereof,

is a series of leading off-pipes 23 which are closed at their upper ends and at their lower ends extend down through the bottom 9, as at 24, and open into areceiving pipe25, the latter communicating, with a suction pipe 26 which empties into a pump 27. The pipe25 is substantially concentric in contour and is positioned in close proximityto the opening 10 formed in the bottom 9'. The fpipe acts as a common receiving pipe for all 0 t e leading off pipes.

Each of the leading ofigipes 23 communicats with a series of tering members. These members are indicatedby the reference character 28. .The filtering members 28 gradually increase in length towards the center of. the receptacle or tank 8. As shown each of the leading off pipes 23 has connected thereto seven filtering members, but this number can be increased or diminished as desired, and each of the filtering members are cylindrical in cross section, as it. has been found from experiment that a cylindrical or circular filtering member occupies less than one-half the space for the same filtering area than a rectangular filtering member, thus obtaining the maximum filtersso,42e

ing area with the minimum of space. Each of the filtering members 28 are detachably I p p connected to its respective leading off pipe 23. To provide for the drawing off of the solu- Each of the filtering members conslsts of a hollow tube 29 closed at its upper end, as at 30, and is provided with a series of openin s 31 to permit of the passage of "the cyanid air of semi-cylindrical notches 35 which ports for the passage of the cyanid so-' orm lution.

. The reference character 36 denotes an envelop of any suitable fabric, or equivalent material, preferably canvas. 36 is open at its top and bottom, and the said envelop 36 is adapted to receive that portion. ofthefltube 29 surrounded by the collar 24 and washers 33. The u per end of the envelo 36 is closed through t e medium of a suitab e holdfast device, as at 38, preferably by a flexible member employed. to tie. the .upper end of the envelop 36 together.. The lower end of the envelop 36 is secured around the tube 29 by a suitableiflexible member 39,. I v

In 'Fig. 3 of the drawings the; washers 33 and collars 35 are shown inde ende'ntof each 'other,"whereas, in Fig. 6 t e-co llars and washers are formed integral with each other, and in Fig. 6, 4O denotes the spacing collar having its lower edge notched, as at-41 and its sides provided with an opening 42. The washer is indicated by the reference character 43 and is formed integral with the collar 40.

In lieu of employing the washers shown in Figs. 3 and 4 with a centrally arranged opening through which the tube 29 ispassed, the opening in the washer can be placed eccentrically, by way of example, such form of washer is shown in Fig. 7, and in this connection the reference character 44 denotes the washer and the reference character 45 the eccentrically arranged openin Although the tube 29 is shown inclose in an envelop of canvas, yet'the tube 29 can be covered in many diiierent wa s, for example, by cocoa-matting, rope, bur ap, with strips running lengthwise, and then covered with a filtering means so as to make a substantial whole. In lieu of makin the member29 hollow the same can be ormed of a solid iece, with admin down its side opening mto the leading off pipe.

The envelop The operation of the filter is as 'follows:- The filtering 'members are made of such is th that they will always be under surface of t e ulp in the tank, though the solution be all tered off. This arrangement of filtering members applies only to the suction process. If the suction is not employed the filtering members can run to the top of the tank. The pulp and solution are let into the, tank. The suction device or pump 20 is started and will cause the drawing oil of the solution at the top of the receptacle or tank and the discharge back into the tank at the bottom, and up into the stand pipe 13. The arrange-.

ment of the suction pipe 18 in the manner as.

pointed out relieves the suction device or pump of the heavysands, as the suction pi e 18 has the inlet thereof near the top of t e tank; The discharge of this solution back 20 into the tank is had at such velocity as to carry the material or pulp up through the stand pipe 13, and discharges the pulp or material onto the cone-shaped member 16, which constitutes the spreader, aerator and amalgamator, and if any coarse gold'is present the member 16 amalgamates it and consequently shortens agitation! The member 16 conducts the pulp or material back into the tank. The circulation, as well as the so agitation of the material in a manner as stated, is continued as long as is desired.

The filtering is started at any time- By. the arrangement of the suction device or pump in a manner as set forth the circu-' $5 lotion and agitating of the material can stopped and resumed at any time, and thls is very advantageous as oftentimes maehinery has been stopped temporarily in a,

plantand unless the agitator can be stopped 40 and started at will, the agitation cannotbe resumed and a loss occurs.

After circulation and agitation of the pump. or material has continued the desired time, the suction device or pump 20 is stop ed and 4a the moisture sucked out, then the isplacement solution is run on and as much sucked through as is wanted, then the wash water is handled in the same manner. At anytime the filteri members needcleaning, the solution can forced back through them and ,the can thus be thoroughly cleaned.

. T he stand pipe 13 may be rovided with a screw cap at the top thereof or closing it, in

" order to force the material or loosen it in the tank, if the material -is exceptionally hard to get in circulation.

Although the referred form of filtering member 1s cylin rical as illustrated in Fig. 3, yet it will be understood that any form of filtermg member suitable for the purpose can be emp claim is What 1. A filtering apparatus of the characterv described, embo dying core having an outlet,

' will be forced up throng Washers surrounding said core, spacing collars for the washers, said spacing collars provided with channels,'and an envelop for the,

3. Afiltering apparatus, com rising a tank adapted to receive the materia to be treated and a suitable solution, filtering members arranged within said tank, a stand.

I ip pe supported in the'tank and spaced apart om the bottom of the tank, a suction pipe communicating with the tank, a circulating device connected to said pipe, and a discharge pipe attached to the said device and opemng into the tank directly below the stand throug the stand pipe. 7

4 4. A filtering apparatus, comprising a tank adaptedto receive the material to be treated and a suitable solution, filtering members ar- 4 ranged within said tank, a stand pi is supported'in the tank and spaced from t e bot-' tom of-the tank, a suction ipe communicating with the tank, a circu ating device connected to said pipe, a discharge pipe attached to the said device and opening into the tank, directly below the stand ipe so that material l ithe stand, pi e and a pump communicating with said fii members.

5. .A filtering apparatusfor the urpose set forth 'comprisin a tank ada to to receive tering the material to e treated an a suitable solution, a stand pipe Within said tank, means communicating with the tank at the top thereof and with the tank at the bottom thereof for "withdrawing the solution from and returning it to the tank, thereby forcing the material up through said stand pipe and pipe so that material will be-forced up causing the circulating and-agitating of the material, and filtering members arranged within the tank.

6. A filtering apparatus for the purpose set forth comprisin a tank adapted to receive the material to e treated and a solution, a stand pipe within said tank, means communicating with the tank at the top thereof and with the tank at the bottom thereof for withdrawing the solution from and-returning it to ,forth, comprising a tank adaptet to receive the material to be treated and a solution, a

stand pipe within said tank, means communicating with the tank at the top thereof and with the tank at the bottom thereof for withdrawing the solution from and returning it to the tank, thereby forcing the material up through said stand pipe and causing the circulating and agitating of the material, filtering members arranged within the tank, a pum eating with the tank at the top thereof and with the tank at the bottom thereof for withdrawing the solution from and returning it to the'tank, thereby" forcing the, material up through said stand pipe and causing the circulating and agitatin of the material, filtering members arrange within the tank, and a combined aerator and amalgamator carried by the up er end of said stand pipe.

9. A .fi ltering a paratus, comprising a tank, a pgurality of eading off pipes within said tan a plurality of circular filtering members connected to each of said leading off ipes, a common receiving pipe for said lea ing ofl' pipes, a pump communicating with said receiving pipe, a vertically extending stand pipe arranged within said tank,

and a circulating device communicating at one end in the upper portion of the tank and at its other end op'eninginto the bottomof the stand ipe.

10. A ltering .a paratus comprising a tank, a lurality of eading off pipes within said tan a plurality of circular filtering members connected to each of said leading off pipes, a. common receiving pipe for said leading ofl' pipes, a pump communicating with said receiving pipe, a vertically extending stand pipe arranged within said tank,

acirculating device communicating at one end in the u per portion of the tank and at its other en' opening into the bottom of the stand pipe, and a combined aerator and amalgamator carried by the upper end of the stand ipe.

11. A filtering apparatus embodying a plurality of filtering members, each of said members consisting of a hollow tube closed at one end and provided with a plurality of I openings, tubular elements surrounding said tube and provided with a plurality of open in s, tubular elements surrounding said tu e and provided with channels, and an envelop for said elements and tube.

12. A filtering apparatus embodying a plurality of filtering members, each of said members consisting ofa hollow tube closed at one end and provided with a plurality of communicating with said filtering mem ers, and a combined aerator and amalgamator carried by the upper end of said openings, tubular elements surrounding said 14. A filtering apparatus comprising a tank provided with a ottom the shape of an inverted cone, a leading off pipe arranged therein and communicating Wlth a pump, a plurality of circular filtering members 0 )en ing into said leading off pipe, said mem ers gradually increasing in length towards the center of said tank, a stand pipe within and spaced from the bottom of said tank, and means opening into said tank at the bottom and adapted to cause the circulation of the material to be treated through the tank and stand pipe. 7

15. A filtering apparatus comprising a tank provided with a bottom the shape of an inverted cone, a leading off pipe arranged therein and communicating with a pump, a plurality of circular filtering members opening into said leading off pipe, said members gradually increasing in length towards the center of said tank, a stand pipe within and spaced from'the bottom of said tank, means opening into said tank at the bottom for causin the circulation of the material to be treated through the tank and stand pipe, an- L-shaped discharge pipe for said tank, and means for closing said discharge pipe.

16. A filtering apparatus of the class described comprising a plurality of filtering members,- a suction device communicating therewith, a stand pipe, a receptacle for said members and stand pipe, and means communicating with the top and bottom of the tank and adapted to force the material up through the stand pipe thereby causing the circulating and agitating of the. material.

17. A filtering a paratus comprising a tank, a plurality o filtering members arranged therein, a leading-off pipe communieating with said members, a stand pipe within the tank, means opening into said tank at the bottom and top for causing a circulation of the material to be treated through the tank and spaced from the bottom thereof and stand pipe, a discharge pipe for the tank, and means for closing the discharge pipe.

18. A filtering a paratus comprising a tank, a plurality o filtering members arranged therein, a leading-off means commu- L the bottom and top for causin a circulation of the material to be treate' through the tank and stand-pipe.

19. A filtering a paratuscomprising a tank, a plurality oi filtering members arranged therein, a leading-off means communicating With said members, a stand-pipe Within the tank and spaced from the bottom thereof, means opening into said tank at the bottom and top for causing a circulation of the material to be treated through the tank stand-pipe, a discharge pipe for the tank, and means for closing the discharge pipe.

20. A filtering apparatus comprising a tank provided with a bottom the shape of an inverted cone, a leading-off means arranged therein, a plurality of filtering members opening into said leading-ofi means, said members gradually increasing inlength towards the center of the tank, a stand-pipe within and spaced from the bottom of the tank, and means opening into said tank at the top and bottom thereof for causing a circulation of the material to be treated through the tank and stand-pipe.

In testimony whereof I have hereunto set my hand'in presence of two subscribing witnesses.

HARRY P. TAYLOR. Witnesses:

' vCLYDE H. JAY,

L. N. TAYLoR'. 

